No driving after drinking is a rule that every driver ______ obey in our country.
A.will B.shall C.may D.can
Restaurants in every corner of Tianjin not only provide job opportunities but ______ lots of taxes.
A.result in B.result from
C.bring up D.bring in
--- When did you last see your first teacher?
--- On ______ Friday last June, at ______ celebration of her 40th year of teaching.
A.a; the B.a; a C./; a D./; the
Father made a promise ______ I passed the exam, he would buy me a PS4.
A.if B.that if C.whether D.that
--- Alex came back home the day before yesterday.
--- Really? Where ______ at all?
A.had he been B.has he been C.had he gone D.has he gone
The dangerous virus ______ in the next few weeks in the laboratory can cause fatal diseases.
A.studying B.studied
C.to study D.to be studied